Characters need to be consistently inconsistent, like real people, but they shouldn't be too much like real people. Characters from Jonathan Strange and Mr Norrell by Susanna Clarke examined.
Self-employment is an interesting world. I am a professional writer. It's pretty sweet. Check out my book on Amazon: Ragged Museum by Oliver Blakemore.
What I like about The Expanse books, my dad's approach to new technology, and why those of us who like the idea of space travel should take comfort in human nature.